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[Bug middle-end/47968] ICE: in gen_lowpart_general, at rtlhooks.c:51 when converting vector of double to vector of float
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 3 Mar 2011 13:15:31 +0000
- Subject: [Bug middle-end/47968] ICE: in gen_lowpart_general, at rtlhooks.c:51 when converting vector of double to vector of float
- Auto-submitted: auto-generated
- References: <bug-47968-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47968
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.03.03 13:15:19
Component|rtl-optimization |middle-end
Ever Confirmed|0 |1
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-03 13:15:19 UTC ---
Confirmed.
#1 0x000000000098a3b8 in gen_lowpart_general (mode=SFmode, x=0x7ffff5b36900)
at /space/rguenther/src/svn/trunk/gcc/rtlhooks.c:51
51 gcc_assert (result != 0);
(gdb) p x
$1 = (rtx) 0x7ffff5b36900
(gdb) call debug_rtx (x)
(reg:DF 64)
Happens during expanding of BIT_FIELD_REF <f4.0_2, 32, 0> from
;; Function foo (foo)
foo (double2 d2)
{
float D.2687;
vector(4) float f4.0;
# BLOCK 2 freq:10000
# PRED: ENTRY [100.0%] (fallthru,exec)
f4.0_2 = VIEW_CONVERT_EXPR<vector(4) float>(d2_1(D));
D.2687_3 = BIT_FIELD_REF <f4.0_2, 32, 0>;
return D.2687_3;